# VNPT SmartCA vs DC4.0

The clearest difference is update cadence: DC4.0 at every 5 days against VNPT SmartCA's every 4 weeks. VNPT SmartCA's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VNPT SmartCA ships an update every 4 weeks, DC4.0 every 5 days. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | VNPT SmartCA | DC4.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (20 ratings)](https://appshunter.io/ios/app/vnpt-smartca/id1540522462/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 44.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 122 MB | 42 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vietnam Posts and Telecommunications Group](https://appshunter.io/developer/1215567249) | [VNPT Media Corporation](https://appshunter.io/developer/1142483774) |

## What reviewers say

### VNPT SmartCA

[App page](https://appshunter.io/ios/app/vnpt-smartca/id1540522462)

This app provides a secure and efficient remote digital signing solution, allowing users to manage and execute digital signatures directly from their mobile devices. It offers features like online account registration, unlimited signing capabilities, and transaction tracking for a comprehensive digital signing experience.

**Highlights:** Online account registration with eKYC, Unlimited digital signing, Manage multiple certificates on one device, Online certificate registration and renewal, Sign, receive, and share files, Track digital signing transactions

**In-app purchases:** none


### DC4.0

[App page](https://appshunter.io/ios/app/dc40/id6736500435)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VNPT SmartCA free?

VNPT SmartCA is free to download, with no in-app purchases.

### Is DC4.0 free?

DC4.0 is free to download, with no in-app purchases.

### Do VNPT SmartCA or DC4.0 have ads?

Neither VNPT SmartCA nor DC4.0 shows ads.

### Which is updated more often, VNPT SmartCA or DC4.0?

VNPT SmartCA ships an update every 4 weeks, and DC4.0 every 5 days. Most recently, VNPT SmartCA was updated on October 14, 2026 and DC4.0 on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*